Select for production fit. Not just the lowest quote.
A manufacturing partner should be evaluated against the actual product, process, quantity, quality, capacity, engineering, communication, and supply requirements of the program.
A supplier decision should combine technical, operational, and commercial factors.
Look beyond whether the supplier owns the right machine.
Technical Capability
Equipment, manufacturing processes, materials, tolerances, part size, complexity, and secondary operations.
Quality Systems
Inspection equipment, process control, corrective action, traceability, documentation, and acceptance methods.
Production Capacity
Equipment loading, labor, scheduling, bottlenecks, subcontractors, and ability to support future demand.
Total Cost
Piece price, tooling, freight, inventory, quality, packaging, engineering support, and supply risk.
Communication
Quote response, engineering questions, schedule updates, corrective actions, and change management.
Supply Continuity
Material sources, critical equipment, tooling, maintenance, supplier concentration, and contingency planning.
Move from a long supplier list to an approved production partner.
Clarify process, materials, quantities, tolerances, quality, documentation, tooling, and delivery.
Remove suppliers whose equipment, processes, materials, scale, or quality systems do not fit the program.
Provide comparable information to each supplier so differences in quotations are meaningful.
Identify exclusions, substitutions, tooling assumptions, lead-time assumptions, and differences in quoted scope.
Use audits, samples, first articles, documentation, references, or pilot production where appropriate.
Two supplier prices are only comparable when they include the same scope.
Pricing differences may come from material assumptions, inspection, tooling, packaging, freight, production quantity, lead time, finishing, subcontracted work, or documentation.
Supplier risk sometimes appears before the purchase order.
Unanswered Technical Questions
A supplier that avoids clarifying unclear requirements may be building assumptions into the quote.
Unrealistic Lead Times
A schedule that ignores tooling, materials, capacity, inspection, or outside processing should be examined carefully.
Undefined Subcontracting
Critical processes may be performed elsewhere even when the buyer assumes everything is completed internally.
Weak Change Control
Material, process, tooling, or source changes should not occur without the communication required by the program.